

.grid line{
    fill: none;
    stroke:#E7E7E7;
    shape-rendering: crispEdges;
}
.grid path{
    fill: '#3498db';
    opacity: 0.1;
}


.d3-tip {
    line-height: 1;
    font-weight: bold;
    padding: 12px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    border-radius: 2px;
}

/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
    box-sizing: border-box;
    display: inline;
    font-size: 10px;
    width: 100%;
    line-height: 1;
    color: rgba(0, 0, 0, 0.8);
    content: "\25BC";
    position: absolute;
    text-align: center;
}

/* Style northward tooltips differently */
.d3-tip.n:after {
    margin: -1px 0 0 0;
    top: 100%;
    left: 0;
}

.node rect {
    fill-opacity: .9;
    shape-rendering: crispEdges;
    stroke-width: 0;
}
.node text {
    text-shadow: 0 1px 0 #fff;
}
.link {
    fill: none;
    stroke: #000;
    stroke-opacity: .2;
}
.legend {
    font-family: 'Raleway', sans-serif;
    fill: #333333;
}

.tooltip {
    fill: #333333;
}
.modal-backdrop.in{ opacity:0.4 !important; }